15+3x=21+5x

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Solution for 15+3x=21+5x equation:



15+3x=21+5x
We move all terms to the left:
15+3x-(21+5x)=0
We add all the numbers together, and all the variables
3x-(5x+21)+15=0
We get rid of parentheses
3x-5x-21+15=0
We add all the numbers together, and all the variables
-2x-6=0
We move all terms containing x to the left, all other terms to the right
-2x=6
x=6/-2
x=-3

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